Insulated concrete vat



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C- 6, 1936- c. U. HAVERLY INSULAATED CONCRETE VAT 2 Sheets-Sheet 2 Filed April 18, 1952 l/ll nlllllllllllllll 1Q z/ Y v W TTQNE VS Wifi-N555' QJ Patented Oct. 6, 1936 UNITEDv STATES PATENT 4OFFICE'.

INSULATED CONCRETE VAT Claire U. Haverly, Syracuse, N. Y.

l Application April 18, 1932, Serial No. 607,180

z claims. (c1. 7 2-1'4) l This invention relates to certain improvements in insulated concrete vats adapted to be installed in or upon the ground or other suitable support for receiving milk cans and other containers, to-

gether with suitable cooling agencies whereby the contents of the cans may be kept for a limited period of time at the proper temperature without deterioration.

The main object is to provide a monolithic 10 concrete vat with a core of insulating material capable of preventing the transmission of ambient moisture and atmospheric temperatures therethrough and thereby to maintain the milk or other contents of the receptacles which are l5 placed therein, at the required temperature.

Another object is to provide a more expeditious economical and eiiicient method of constructing these vats at the place of installation than has heretofore been practised.

One of the specific objects is to construct the insulating cores for the vat by means of a multiplicity of slabs of cork or equivalent material so that they may be separately coated throughout their areas with hydrolene or other suitable waterproof material and then assembled in overlapping joint-breaking relation and the entire assembly again coated with a similar kor equivalent moisture-proof material to render the core rigid and self-supporting ready for incorporation in the concrete to form the vat.

Other objects and uses will be brought out inv the following description:

In the drawings:- Figure 1 is a perspective view of an insulated concrete vat embodying certain features of my invention.

Figure 2 is an enlarged transverse vertical sectional View taken on line 2 2, Figure l. Figure 3 is a perspective `View (on a reduced scale) of the detached insulating core, a part of the outer sheathing being broken away,

Figure 4 is a sectional perspective view of the apparatus used in the construction of the vat showing the concrete base of the vat partially completed for supporting the insulating core and 55 to be installed upon the ground or other suitable support at the dairy farm or other station where the vat is to be used. 1

As illustrated, the vat is rectangular and of suflicient capacity to receive two or more milk cans of conventional size, together with suitable 5 cooling coils or other cooling agencies and comprises a box-like shell I of concrete and a similarly formed shell or core 2 of heat-insulating material incorporated therein during the process of molding the concrete shell so that the in- 10' sulating core may be entirely enveloped, concealed and protected by the cement.

I nsulatz'ng core The insulating core 2 of the vat preferably l5 comprises inner and outer layers of cork or equivalent material .substantially co-extensive with the areas of the bottom and side walls thereof and coated or otherwise treated to render it moisture-proof. o,

As shown more clearly in Figures 2 and 3, each 2 layer of the insulating core 2 is composed of a multiplicity of similar slabs 3 of cork or equivalent light and tenacious insulating material and of any suitable size convenient for handling, each slab being separately immersed in a bath of liquid or semi-liquid tar or equivalent waterproofing material to form a self-adhesive coating 4 covering the entire area thereof before the slabs are assembled to form the insulating core. 30V

The coated slabs of both layers are usually assembled edge to edge at the place of installation in such manner as to break joints and to bring both layers into close contact to form the bottom and sides of the core 2 after Which the as- 35 sembled coated slabs are encased in an additional coating or sheathing 5 of moisture-proof material such, for example, as asphalt, tar-paper or its equivalent which is closely applied to all portions of the inner and outer surfaces of the core for firmly binding the slabs of the core together and thereby forming a rigid self-'supporting structure capable of being handled as a unit without'liability of disintegration.

The coatings 4 .of the slabs and also the coat- 45 ing 5 for the entire'assembly of slabs are not onlymore or less adhesive to assist in establishing a rmbond between and around the'slabs, but also add materially to the insulating properties of the entire core and prevent the transmission of moisture from the exterior to the interior of the vat when the core is incorporated in the concrete shell I.

In carrying out the further construction of the vat, a concrete footing course or base 6 55 of any suitable thickness is formed upon the ground or other support at the place of installation and is preferably rectangular and horizontal and of greater area than the bottom of the core 2 which, when the concrete base is set, is constructed or placed thereon so as to allow the marginal edges of the concrete base 6 to extend uniform distances beyond the corresponding marginal edges of the bottom of the insulating core 2 a distance corresponding approximately to the thickness of the outer upright side walls of the concrete shell I which are to be built up therefrom. y Forms In order to complete the construction of the concrete shell I and particularly when more or less of the vat is to be exposed abovethe surface of the ground, suitable outer and inner forms are required to assure proper thickness and height of the upright concrete walls, and for this purpose, I provide an outer form 1 and an inner form 8.

The outer form I may be of any suitable construction, but is preferably made of sheathing boards placed edge to edge in an upright position entirely around the outer edge of the base 6 and extending upwardly to the height required for the vat, with their `upper edges disposed in a substantially horizontal plane some distance above that of the upper edge of the insulating core 2 when the latter is resting upon the base 6, the sheathing boards I being held together by suitable cleats 'I' as shown, more clearly in Figure 4. The inner form 'I is preferably rectangular in horizontal cross section and of appreciably less external dimensions than that of the interior of the insulating core 2 within which the form is adapted to be placed with its outer walls in spaced relation to the inner surface of the upright walls of the core a distance corresponding to that required for the thickness of the inner upright walls of the concrete shell. The form 8 is collapsible and comprises opposed side sections 9 and end sections I0 constructed of steel plates I I and I2 respectively, and reinforced on their inside surfaces by suitable horizontally and vertically extending angle irons. The outer upright edge of each end section is bent inwardly to form a flange I3 adapted to abut against the outer edge of the side sections.

The respective plates may be provided with an angle iron I 4 on their inner surface along each meeting edge with an adjacent section. The two angle irons I4 at each joint are secured to each other by bolts I5 for clamping the respective sections together.

The side sections of the form 8 are preferably provided with notched horizontally extending reinforcing angle irons I6 adapted to operatively support one or more cross braces I1 to hold the sides of the form against buckling under the pressure of the concrete between the form and the core 2. During the molding of the concrete shell I within and around the insulating core 2, the form 8 is supported with its lower end in spaced relation to the upper surface of the bottom wall of the core 2 a distance corresponding to the thickness required for the bottom wall of the shell I above the bottom of the core. For this purpose, the opposite side and end walls of the form 8 may be provided with a plurality of support rods I8 preferably releasably secured to the walls of the frame in any suitable manner.

It will, of course, be understood that the upper surfaces of the concrete base 6 projecting outwardly beyond the adjacent portions of the core 2 will be left more or less rough and that the upright concrete walls of the shell will be molded u thereon in a manner described, while the concrete base is still in a more or lessi green state, thereby establishing a close knitting of the upright walls with the base around the outside of the core 2, under which conditions the base becomes a homogeneous part of the side walls of the shell I which, in turn, will constitute what may be termed a monolithic shell enveloping the entire core 2 to protect `the same against injury while the core serves to Y prevent transmission of moisture and heat through the bottom and side walls of the vat.

After the vat has been completed in the manner described, the entire form, either as a unit or in sections, may be removed by upward displacement through the upper open end of the vat and re-used in the installation of other vats.

' If necessary, the upper corners of the concrete may be protected against injury by angle irons I9 suitably anchored thereto during the molding process.

Although I have shown and described a specific insulated concrete vat construction, it is to be understood that the same is for the purpose or" illustration and that many changes may be made by those skilled in the art without departing from the spirit and scope of the appended claims.

I claim:

1. A cooling vat comprising a core, said core comprising a multiplicity of slabs of heat-insulating material coated with a moisture-impervious material arraged end to end and edge to edge to form a box-like structure open at the top and a sheathing of moisture-proof material surrounding said slabs to increase the moistureresisting property of the core and for maintaining the separate slabs in position, and a shell of concrete molded completely around said core to form a monolithic structure.

2. A cooling vat comprising a core, said core comprising a multiplicity of cork slabs coated with a plastic moisture-impervious material arranged edge toedge and end to end in two adjacent courses to form a box-like structure open at the top, the slabs in one course being arranged in staggered relation with respect to the slabs in the other course so that the respective slabs break joints and a sheathing of moistureproof material surrounding said slabs to increase the moisture-resisting property of the core and for maintaining the separate slabs in position, and a shell of concrete molded completely around said core to form a monolithic structure.

Cl'JAII-tEr U. HAVERLY. 

